SC4431 datasheet(4/8 Pages) SEMTECH

4 / 8 page

 2003 Semtech Corp.

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POWER MANAGEMENT

SC4431

Shunt Regulator With

Open Collector Output

Typical Characteristics

Typical Vref vs Ta Io = 2mA

Typical Vref vs Ta Vcc = 2V

Typical Icc Off vs Ta Vo = 2V

Typical Iout vs Ta Vo = 2V

Typical Iref vs Ta Vcc = 2V

Typical Vsat vs Ta Vcc = 2V

V ref vs T a Iout = 2m A

1.2 1 8

1.2 1 9

1.2 2 0

1.2 2 1

1.2 2 2

1.2 2 3

1.2 2 4

1.2 2 5

1.2 2 6

1.2 2 7

1.2 2 8

-4 0 -3 0 -2 0 -1 0

1 02 03 04 0

5 0

6 0

7 08 0

Ta (D eg.C .)

V c c = 1.5V

V cc= 2 V

V cc= 5 V

V cc= 1 5 V

Icc O ff vs T a V o u t = 2V

50 E -6

55 E -6

60 E -6

65 E -6

70 E -6

-4 0 -3 0 -2 0 -1 0

1 0

2 03 04 05 0

6 07 08 0

Ta (D eg.C .)

Icc_O ff

Iref vs T a V cc = 2V

20 E -9

25 E -9

30 E -9

35 E -9

40 E -9

45 E -9

-4 0

-3 0

-2 0

-1 0

1 02 0

3 04 0

5 0

6 07 0

8 0

Ta (D eg.C .)

Iout= 100 uA

Iout= 1 m A

Iout= 2 m A

Iout= 5 m A

Iout= 10m A

Iout= 15m A

V ref vs T a V cc = 2V

1.2 2 2

1.2 2 4

1.2 2 6

1.2 2 8

1.2 3 0

1.2 3 2

1.2 3 4

1.2 3 6

-4 0

-3 0

-2 0

-1 0

1 0

2 0

3 04 0

5 06 07 0

8 0

Ta (D eg.C .)

Iout= 40m a

Iout= 2 m A

Iout= 100 uA

Iref vs T a V out = 2V

4E -9

5E -9

6E -9

7E -9

8E -9

9E -9

10 E -9

11 E -9

12 E -9

13 E -9

-4 0 -3 0 -2 0 -1 0

1 0

2 03 04 05 0

6 07 08 0

Ta (D eg.C .)

Ire f

V sat vs T a V cc = 2V

10 0

15 0

20 0

25 0

30 0

35 0

-4 0

-3 0

-2 0

-1 0

1 02 0

3 04 0

5 0

6 07 0

8 0

Ta (D eg.C .)

Iout= 40m a

Iout= 5 m A

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